/Engine/Source/Editor/UnrealEd/Public/MRUFavoritesList.h
Supplies an optional delegate that can be used to filter a given MRUFavorites item Useful for dynamically verifying which items should be utilized at a given time
void RegisterDoesMRUFavoritesItemPassFilterDelegate ( [FDoesMRUFavoritesItemPassFilter](API\Editor\UnrealEd\FMainMRUFavoritesList\FDoesMRUFavoritesItemPassFilter) DoesMRUFavoritesItemPassFilterDelegate )